The survey asked respondents to indicate how many light bulbs, including energy saving light bulbs, they had in their home. The mean average for the total number of light bulbs per home was estimated to be 20 per home which is consistent with research carried out by the Energy Saving Trust in February 2008 (which indicated a mean number of 19 light bulbs per home).

Note
8 Light bulbs, cars and most electrical appliances (e.g. refrigerators, stoves, washing machines) carry the EU Energy Label. The energy efficiency of the product is rated in energy levels ranging from A to G on the outside label. 'A' stands for the most energy efficient and 'G' for the least energy efficient.

The mean number of energy saving light bulbs per home was just over half this number (12) indicating that in an average home around 60% of the light bulbs were energy saving light bulbs. Comparisons with research carried out by the Energy Saving Trust in February 2008 and the 2007 Defra survey data indicate that the average proportion of energy saving light bulbs in people's homes is increasing. In 2007 the equivalent figure was reported as 4 energy saving light bulbs per home, increasing to a reported 7 per home in February 2008 (and 39% of all bulbs). This is shown in Table 13. The 2007 question only asked for an estimate of the number of energy saving light bulbs in the home.